Posts by Leo • 49 points

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  Q: How to paint a graph in r from a specific value?

  x <- seq(0, 15, length.out=10000) dat <- data.frame(x=x, px=dexp(x, rate = 1/5 )) library(ggplot2) ggplot(dat, aes(x=x, y=px)) + geom_line() I’d like to paint this chart from the value 10,…

  r ggplot2

  asked 3 years, 2 months ago Leo 49

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  Q: How do I build the Summary() function in R for a data frame?

  I’m trying to do it this way dados<- c(10,18,19,15,21,34,45,64,20,21,39) resumo <- function(x) { min(x) max(x) n <- length(x) s <- sort(x) ifelse(n%%2==1, s[(n+1)/2], mean(s[n/2+0:1]))…

  r function if summary

  asked 3 years, 3 months ago Leo 49

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  Q: How do I do a repeat structure function on R?

  I’m trying this way: H <- function(n) { for (i in 1:length(n)) { x <- 0 a <- 2 b <- 3 func = x + a/b a+2 b+2 return(func) } } Does anyone know how to solve?…

  r loop for

  asked 3 years, 3 months ago Leo 49

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  Q: Demand forecast for many items

  Good afternoon, folks. I’d like to hear your opinion on the following: I am working in an e-commerce company, which has more than 1000 items for sale, and each item of this, has a series of daily…

  r forecast

  asked 3 years, 6 months ago Leo 49